<template>
  <div>
      <!-- 面包屑导航区域 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
      <!-- 卡片视图区域 -->
      <el-card>
        <!-- 搜索与添加区域 -->
        <el-row :gutter="20">
            <el-col :span="7">
                <el-input placeholder="请输入内容" v-model="queryInfo.search" clearable @clear="getUserList">
                <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
            </el-col>
        </el-row>

        <!-- 用户列表区域 -->
        <el-table :data="userList" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column prop="email" label="邮箱"></el-table-column>
            <el-table-column prop="mobile" label="电话"></el-table-column>
            <el-table-column prop="role_name" label="角色"></el-table-column>
            <el-table-column label="状态">
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                    </el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作" width="180px">
                <template slot-scope="scope">
                    <!-- 修改按钮 -->
                    <el-button size="mini" @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit"></el-button>
                    <!-- 删除按钮 -->
                    <el-button size="mini" @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete"></el-button>
                    <!-- 分配角色按钮 -->
                    <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                        <el-button size="mini" type="warning" icon="el-icon-setting" @click="setRole(scope.row)"></el-button>
                    </el-tooltip>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.page"
            :page-sizes="[3, 5, 7, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
        </el-pagination>

        <!-- 添加用户对话框 -->
        <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed">
        <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
        </el-dialog>

        <!-- 修改用户对话框 -->
        <el-dialog
        title="添加用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed">
        <!-- 内容主体区域 -->
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%" @close="setRoleDialogClosed">
        <div>
            <p>当前的用户: {{ userInfo.username }}</p>
            <p>当前的角色: {{ userInfo.role_name }}</p>
            <p>分配新角色: 
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                    v-for="item in rolesList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                    </el-option>
                </el-select>
            </p>
        </div>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
        </el-dialog>
      </el-card>
  </div>
</template>

<script>
import {getUsersList, addUsersApi, editUserStateApi, getUserInfo, editUserInfoApi, deleteUserApi, allocateRole} from '../../api/usersapi'
import {getRoleApi} from '../../api/rolesApi'
export default {
    name: 'users',
    data(){
        // 验证邮箱规则
        var checkEmail = (rule, value, cb) =>{
            // 验证邮箱的正则
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)){
                // 合法的邮箱
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        // 验证手机号规则
        var checkMobile=(rule, value, cb) =>{
            const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if(regMobile.test(value)){
                // 合法的邮箱
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }
        return{
            // 获取用户列表的参数对象
            queryInfo:{
                // 搜索关键字
                search: '',
                // 当前每页显示多少条
                pagesize: 3,
                // 当前第几页
                page : 1
            },
            // 用户列表
            userList: [],
            // 总条数
            total: 0,
            // 控制添加用户对话框显示与隐藏
            addDialogVisible: false,
            // 控制修改用户对话框显示与隐藏
            editDialogVisible: false,
            // 添加用户表单数据
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 添加表单验证规则对象
            addFormRules:{
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    {validator: checkEmail, trigger: 'blur'}
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    {validator: checkMobile, trigger: 'blur'}
                ]
            },
            // 修改用户表单数据
            editForm:{},
            // 修改表单验证规则
            editFormRules:{
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    {validator: checkEmail, trigger: 'blur'}
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    {validator: checkMobile, trigger: 'blur'}
                ]
            },
            // 控制角色分配对话框的显示与隐藏
            setRoleDialogVisible: false,
            // 需要被分配角色的用户信息
            userInfo : {},
            // 所有角色的数据列表
            rolesList: [],
            // 已选中的角色id值
            selectedRoleId: '',
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
        //    const {data: res} = await this.$http.get('users', {params: this.queryInfo})
            const data = await getUsersList(this.queryInfo)
            // console.log(data);
           if (data.status !== 200) return this.$message.error('获取用户列表失败!')
            this.userList = data.data.results
            this.total = data.data.count
            // console.log(this.userList, this.total);
        },
        // 监听pagesize改变的事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值改变的事件
        handleCurrentChange(newPage){
            this.queryInfo.page = newPage
            this.getUserList()
        },
        // 控制switch状态更新事件
        async userStateChange(userInfo){
            const data = await editUserStateApi({id: userInfo.id, mg_state: userInfo.mg_state})
            if (data.status !== 200) {
                userInfo.mg_state = !userInfo.mg_state
                return this.$message.error('更新用户状态失败!')
                }
            this.$message.success('更新用户状态成功!')
            // this.getUserList()
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        // 点击按钮添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid => {
                if (!valid) return
                // 可以发起添加用户的网络请求
                const data = await addUsersApi(this.addForm)
                if(data.status !== 201){
                    this.$message.error('添加用户失败！')
                    this.addDialogVisible = false
                    return this.getUserList()
                }
                this.$message.success('添加用户成功！')
                // 隐藏添加用户的对话框
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        // 展示编辑用户的对话框
        async showEditDialog(id){
            const data = await getUserInfo(id)
            if (data.status !== 200) {
                return this.$message.error('查询用户失败！')
            }
            this.editForm = data.data
            this.editDialogVisible = true
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid => {
                if (!valid) return
                // 可以发起修改用户的网络请求
                const data = await editUserInfoApi({id:this.editForm.id,email:this.editForm.email, mobile: this.editForm.mobile})
                if(data.status !== 200){
                    this.$message.error('更新用户失败！')
                    this.editDialogVisible = false
                    return this.getUserList()
                }
                this.$message.success('更新用户成功！')
                // 隐藏添加用户的对话框
                this.editDialogVisible = false
                this.getUserList()
            })
        },
        // 点击删除用户(根据id删除)
        async removeUserById (id) {
            // 弹框询问用户是否删除数据
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err=>err)
            // 如果用户确认删除，则返回值为字符串confirm
            // 如果用户取消了删除，则返回值为字符串cancel
            if ( confirmResult !== 'confirm' ) return this.$message.info('已取消删除！')
            const data = await deleteUserApi(id)
            if (data.status !== 204) return this.$message.error('删除用户失败！')
            this.$message.success('删除用户成功!')
            this.getUserList()
        },

        // 失败
        // 展示分配角色的对话框
        async setRole(userInfo){
            this.userInfo = userInfo
            // 在展示对话框之前获取角色列表
            const data = await getRoleApi
            if(data.status !== 200) return this.$message.error('获取角色列表失败!')
            this.rolesList = data.data
            this.setRoleDialogVisible = true
        },
        // 点击为用户分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId) return this.$message.error('请选择要分配的角色!')
            console.log(this.selectedRoleId);
            console.log(this.userInfo.id);
            const data = await allocateRole({id: this.userInfo.id ,role_name_id: this.selectedRoleId})
            console.log(data);
            if (data.status !== 200){
                this.setRoleDialogVisible = false
                return this.$message.error('更新角色失败!')
            }
            this.$message.success('更新角色成功!')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>

<style scoped>
</style>